Developers are trying to keep selling offsets from hundreds of controversial projects through a revamped United Nations mechanism, sparking fears that worthless credits will allow companies and countries to pollute.
Climate Home analysis shows that renewable energy investments make up four-fifths of all projects seeking a transfer from the old Clean Development Mechanism (CDM) to the new system under article 6.4 of the Paris Agreement.
Experts have long written off the vast majority of credits produced from renewable energy as junk because they often already provide the cheapest sources of power in most of the world and selling offsets to fund them does not have any additional impact on emissions.
Some of these projects have also been accused of human rights violations such as forced evictions for the construction of large dams.
Harry Fearnehough from New Climate Institute told Climate Home that “it could definitely undermine the credibility of the mechanism because, while there’s still uncertainty over what it will look like, as a starting point you have a huge supply of low-quality offsets that are potentially available at a very low cost”.
Established in 1997 by the Kyoto Protocol, the UN’s CDM allowed rich countries to meet some of their climate obligations by financing emission-cutting projects in poorer ones.
The programme has received widespread criticism for its patchy human rights record and for failing to deliver promised climate benefits. Supporters of a new mechanism currently being developed under article 6.4 of the Paris Agreement say it is an improved, higher-integrity successor to the CDM.
Winning a lifeline
Countries are still wrangling over many aspects of the future market, but one much-debated issue was settled at Cop26 in Glasgow.
Under pressure from Brazil, Russia, China and India, countries agreed that a vast number of projects originally created under the CDM were allowed to migrate to the new mechanism. This handed them the chance to significantly extend their lifespan and their potential credit sales.
Project developers had until the end of December 2023 to fill in a simple two-page form and submit their transition requests.
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Of the nearly 3,500 eligible projects, over a third (1,284) seized that opportunity.
In total, the projects that have requested transition by the deadline could supply 700 million tons of carbon credits between 2021 – the start year for accounting purposes set by the regulation – and 2035, according to a preliminary analysis by NewClimate Institute shared with Climate Home. That is more than the annual CO2 emissions of Germany.
While a relatively small share of the projects opted in, they account for approximately three-quarters of the potential supply of carbon offsets.
That’s because some of the programmes seeking to move could produce an outsized volume of credits. The two biggest ones – a hydro plant and a nitrous oxide emission reduction scheme, both in Brazil – each have the potential to issue around 6 million tons of offsets a year. That’s similar to the annual emissions of Sierra Leone.
Fearnehough says that “very few, if any, of these credits are genuinely likely to be additional”, going beyond what countries would do anyway without the carbon finance.
“A key reason for this is that the CDM was really only scheduled to run up to the end of 2020,” he added. “No investor would have made a decision purely based on expecting revenues from credits in the 2020s because, quite simply, there was no political indication that the possibility to move over to a new mechanism would exist”.
Climate and social concerns
That is particularly true for the renewable energy projects vastly dominating the list. Experts say they are highly likely to fail the additionality test, meaning their credits do not bring any climate benefit. When used to compensate for real emissions elsewhere, they result in more greenhouse gases entering the atmosphere.
The reason is simple. Many renewable offsets came into existence just as solar and wind power were becoming the cheapest source of energy in most countries. After years in operation, they are likely to be profitable from the sale of the electricity alone, without the need for additional revenues from carbon offsetting.
A 2016 study commissioned by the European Commission concluded that the vast majority of these projects “are not providing real, measurable and additional emission reductions”.
The Jirau hydropower plant is located on the Madeira River, in Brazil. Photo: UHE em Jirau/Flickr
Hydropower projects carry even more concerns as their implementation is often marred by human rights problems. Vulnerable communities relying on rivers for their livelihoods are particularly at risk of forced displacement.
The largest project applying for the transition to the new mechanism – the Jirau mega-plant in Brazil’s Rondonia state – is a case in point.
Over the years the project has faced multiple accusations of stoking tensions, pushing indigenous people away from their territories and breaching the rights of the workers that built it. Engie, the project’s developer, previously rejected any accusations.
Other categories of activities featuring prominently on the transition list have raised major concerns in the past.
Credits from projects which claim to cut or stop the emission of industrial gases such as nitrous oxide (N20) and trifluoromethane (HFC-23) were banned by the EU in 2013 for use in its emission trading system.
That’s because, according to studies, they created “a perverse incentive” to increase the production of gases depleting the ozone layer.
Countries’ authorisation dilemma
While the CDM projects have now made their move and requested transition, they are not automatically through to the new system.
Standing in their way is the need to receive a formal authorisation to proceed from the countries where their activities are located. Governments have until 2025 to make a decision and, experts predict, it won’t be a straightforward one.
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“It’s not a guarantee that all host countries will want to approve all of these projects”, according to Jonathan Crook from Carbon Market Watch, who said there would be contrasting forces at play.
“If they authorise them, they have to do corresponding adjustments, which they might not be so keen on since those emission reductions will be deducted from their [NDC climate plans]. But, at the same time, most projects are located in very large countries and it may not make a big difference to their plans”.
The answer to this dilemma will rest primarily in the hands of China, India and Brazil. Between them, the countries host around three-quarters of all projects that are looking to migrate under article 6.4.
Spotlight on three countries
Observers of climate talks said their governments all pushed for rules that would grant a lifeline to as many CDM projects as possible when those negotiations took place at Cop25 in Madrid and Cop26 in Glasgow. But, since then, they have been conspicuously quiet on the topic.
Climate Home approached the respective carbon market authorities in the three countries but did not receive a response at the time of publication.
Trishant Dev is a carbon market expert at the Delhi-based Centre for Science and Environment. He expects there will be “a lot of pressure on the Indian government to let projects through from the carbon industry, which is thriving in the country”.
But, at the same time, he thinks the government will take time to properly understand all the pros and cons of allowing such authorisations. “It’s a chaotic process. Countries want to make sense of what the final outcome of the article 6 discussions will be and how that will interact with domestic carbon markets they are constructing”, he said.
Who will buy the credits?
Article 6 talks collapsed at Cop28 last December after attempts led by the EU to introduce tighter controls and further integrity safeguards had been rebuffed by the US. Negotiators will try again this year to hammer out a deal on many technical issues that need to be resolved before trading of offsets can begin.
Meanwhile, questions also remain on who will be interested in using those credits, once the market is up and running. Countries, corporations and individuals could all be potential buyers.
New Climate Institute’s Fearnehough said there doesn’t seem to be much appetite from countries based on what they are saying in public. “But it’s hard to predict what will happen when suddenly the offsets are available and you have an easy option to meet your NDC targets”, he added.
The credits may gain more interest from polluting companies. Banks, airlines and industrial heavyweights keep buying large volumes of questionable renewable energy offsets despite the known concerns, a Bloomberg investigation found. Dressing them up with the UN stamp of approval may add to the appeal.
Carbon Market Watch’s Crook believes much will depend on the transparency of the system – something still largely unknown. “If there is a very transparent register disclosing who purchased how many credits and for what purpose, that would disincentivize companies from transacting low-quality credits out of reputational fears,” he said. “But if it isn’t transparent, buyers may not be as careful with due diligence or may be even encouraged to buy bad credits since there won’t be scrutiny”.
The post Junk offset sellers push to enter new UN carbon market appeared first on Climate Home News.
Claver Gatete is Executive Secretary of the UN Economic Commission for Africa. Jason Veysey is Energy Modeling Program Director and Senior Scientist at the Stockholm Environment Institute. Lisa Sachs is Director of the Columbia Center on Sustainable Investment at Columbia University.
The case for global energy transition has rarely been clearer. The closure of the Strait of Hormuz earlier this year exposed the cost of unplanned, fossil-dependent systems, while the falling cost of renewables, the rising penetration of electric vehicles, and the growing value of demand flexibility have made the direction of travel obvious. The benefits of a clean, secure, integrated system are no longer in dispute. What remains unclear is how to build it.
Countries around the world have called for faster renewable energy deployment and alternative energy arrangements. A secure, affordable, resilient, decarbonised system requires specific investments in specific places in a specific sequence, optimised across sectors and borders. But very few governments have the analytical foundation to translate those imperatives into investment.
The two instruments that are supposed to determine investment priorities for decarbonisation – Nationally Determined Contributions (NDCs) and country platforms – cannot answer the most basic question facing any country undertaking an energy transition: what should the energy system look like?
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To close this gap, every country needs a bankable, economy-wide optimisation model for its energy system. A model is not a plan, but it can help answer the critical question of what the future energy system should look like. It shows how optimal scenarios vary as assumptions and policies are adjusted, calculates investment requirements and sequencing, and quantifies how system costs are affected by assumptions, policies, and exogenous variables like trade policy and financing terms.
Tool for efficient investment
Optimisation is a simplified way of simulating an energy system, but it can be an extremely powerful tool for moving energy planning from reactive (how do we manage the disparate actions in the energy system?) to intentional (what energy system underpins our national objectives?). A model can show how optimal scenarios vary as assumptions and policies are adjusted, and how investment requirements are quantified and sequenced.
Optimisation models can treat the energy system and the sectors it serves as an integrated whole, optimising across sectors and projects in ways that can be mutually reinforcing. If considered independently, growth in industrial demand, transport electrification, and digital infrastructure can add stress to the energy system. But an optimised plan can arrange these and other changes in an efficient, synergistic way.
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New load can be added where low-cost power is available; industrial customers can ensure the viability of investments in energy supply; electric vehicle charging policy can smooth load curves and reduce costs for all consumers.
Additionally, optimisation modeling can also change the financeability of investments. Taken alone, each project faces uncertainty about the rest of the system, which raises the cost of capital and causes projects to stall or unwind after contracts are signed. A coherent, optimised plan makes visible the coordination that private capital would otherwise have to bet on: identified offtake, sequenced and committed transmission, contracted power supply, and so on.
What COP31 and COP32 should do
The upcoming COPs in Turkey and Ethiopia can shift the center of gravity of international climate cooperation from fragmented commitments to planning. Three moves are urgently needed.
First, optimised, economy-wide, long-term energy system planning must be the foundation on which any meaningful NDC, country platform, or finance commitment rests. NDCs are typically drafted by environment or single-line ministries, with limited cross-sectoral input from ministries of energy, finance, and planning. They contain targets, derived from sectoral strategies or national commitments, not from an analytically grounded picture of what the energy system should look like and what investments would make it work. Country platforms are generally a portfolio of investments assembled from existing project pipelines, rather than derived from a system-level analysis of what an optimised, decarbonised energy system would require.
Second, recognise regions as a key planning unit. Modern integrated energy systems are inherently regional. Renewable endowments are unevenly distributed; balancing variable supply across borders lowers aggregate cost, reduces redundant backup capacity, and unlocks economies of scale no individual nation can achieve. Many energy investments in Southeast Asia, East Africa, Southern Africa and Central Asia may only be financeable in a regional context. Assessing domestic infrastructure without regional optimisation perpetuates the perception that decarbonisation is more expensive than it is.
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Third, finance the planning capacity. A coordinated commitment by multilateral development banks, bilateral donors, and philanthropic partners to help every region and its constituent countries develop and maintain their own modelling capability, with open-source tools and regional analytical hubs, would close the most consequential gap in the current architecture. The cost is small relative to current spending on country platforms, failed project preparation, and misallocated infrastructure investment.
This includes supporting regional institutions such as the ASEAN Centre for Energy, the African Energy Commission, regional power pools, and the Latin American and Caribbean Energy Organization to determine what optimised regional systems require. Country-by-country pledging, repeated at every COP, will not deliver what meaningfully integrated systems can.
The 2026 energy crisis made the cost of unplanned, fossil-dependent systems newly visible. That window of clarity will close. The international community should seize the moment to build the planning foundation that has been missing for thirty years, rather than commissioning another round of NDCs or pledges, striving for outcomes neither was designed to deliver.
The post Every country needs a model to help optimise its energy transition appeared first on Climate Home News.
Every country needs a model to help optimise its energy transition
The world is currently experiencing what is expected to become the strongest El Niño on record – dubbed a “super El Niño” by many.
El Niño is the warm phase of a recurring climate pattern in the tropical Pacific that releases heat from the ocean into the atmosphere.
This temporarily raises global temperatures and reshapes rainfall and extreme weather around the world – impacting the lives of billions of people.
The current El Niño event began in June and is expected to last into 2027.
El Niño is part of a wider climate pattern called the El Niño-Southern Oscillation (ENSO) cycle.
The ENSO cycle also has a cool phase, known as La Niña, as well as a “neutral” phase. El Niño and La Niña events typically last between nine and 12 months, but can go on longer.
Below, Carbon Brief explains how the ENSO cycle works, its impacts on extreme weather and global temperatures and why this El Niño event is projected to be the most intense since records began.
The post Explainer: How the ‘super El Niño’ will reshape the world’s weather appeared first on Carbon Brief.
https://interactive.carbonbrief.org/el-nino-explainer/index.html
The second-largest reservoir in the US reached a record-low water height on Saturday – just days after the country’s largest reservoir broke its own record.
Both Lake Mead and Lake Powell are located on the Colorado River.
They provide water for populations across seven US states in the south-western US, with around 40 million people getting some or all of their municipal water from the Colorado River.
The river also provides water for around 5.5m acres (22,258 square kilometres) of farmland across Colorado, Arizona, California and the other states in the river basin.
Experts tell Carbon Brief that climate change, population growth and over-consumption are all contributing to the current record-low levels of the reservoirs.
Record lows
At full capacity, Lakes Mead and Powell can hold a combined 68 cubic kilometres of water – enough to supply all household consumption in the contiguous US for nearly 1.5 years. However, the water level in both reservoirs has been declining for decades.
The chart below shows the water level of Lake Mead, in metres above mean sea level. The reservoir, which began to fill in 1935 following the construction of the Hoover Dam, has a “full pool” maximum capacity of 347.60 metres. The water level in Lake Mead reached a record low of 317.11 metres on 7 August.
The following chart shows the water level of Lake Powell, in metres above mean sea level. Lake Powell’s full-pool level is 1,127.76 metres.
While the reservoir reached its maximum capacity several times in the 1980s, it has not done so since. On 15 August, the water level in Lake Powell was recorded at a new record-low of 1,072.87 metres.
Both reservoirs have continued to decline in the days since breaking their respective records. The downward trend will largely continue in both lakes until next spring, when the snowpack in the mountains of the Upper Colorado River Basin begins to melt, says Dr Jack Schmidt, a senior research scientist at Utah State University’s Center for Colorado River Studies. He tells Carbon Brief:
“The big dilemma of the moment is that we’re only in the middle of August, and we have no assurance of what the coming winter will be. The only thing we can be sure of is that we will be depleting overall total basin reservoir storage from now until, roughly, early April.”
Compounding factors
The record lows across the two reservoirs are the result of several compounding factors, experts tell Carbon Brief.
Since the turn of the 20th century, the amount of water flowing along the Upper Colorado River has declined by about 20%. Research suggests that half of this decline can be attributed to human-induced climate change.
Most of the river’s streamflow comes from the snowpack of the Upper Colorado River Basin, which stretches across five western US states but is primarily located in Colorado and Utah.
This region has been gripped by a historic “megadrought” for more than a quarter of a century. Nearly half of the megadrought’s intensity over 2000-18 is attributable to climate change, according to a 2020 study.
At the same time, the increasing population in the US south-west has put added pressure on the Colorado River’s water supply. The number of people obtaining some or all of their water from the Colorado system has grown by 15 million (around 60%) since 1992.
Schmidt tells Carbon Brief:
“There’s an ultimate cause of the present water crisis, and there’s a proximate cause. The ultimate cause is a warming climate, a warming planet and a pretty clear correlation between warming conditions and decreased runoff in the Colorado River Basin.
“The proximate cause is that in this messy democratic republic of ours, big policy decisions that match the variability of the climate occur painfully slowly – with intense political negotiations – and only incrementally.”
On 31 July, the US Bureau of Reclamation, which manages water resources in the western US, released an environmental impact statement on its proposed post-2026 strategy for managing Lakes Powell and Mead. The strategy itself has not been released yet.
Schmidt notes that the statement does appear to give the Bureau flexibility to “respond to crisis” by reducing the delivery of water to several states. However, he adds:
“They acknowledge it won’t work if we just stay critically dry, and of course every climate model for the 21st century, especially with a continually warming planet, says that that’s exactly what’s going to happen.”
The post Analysis: The two largest reservoirs in the US have hit record-low levels appeared first on Carbon Brief.
Analysis: The two largest reservoirs in the US have hit record-low levels
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